<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
</head>
<body>
<div>
  <form id="myForm" method="post" th:action="@{/trustclientdata/wrong}">

    <select id="countryId" name="countryId">
      <option value="0">Select country</option>
      <option th:each="country : ${countries}" th:text="${country.name}" th:value="${country.id}"></option>
    </select>

    <button th:text="Register" type="submit" />
  </form>
</div>
</body>
